Evidence map›Paper›PMID 26937966›Full record

ArticlePloS one2016

Reproducibility of Fluorescent Expression from Engineered Biological Constructs in E. coli.

Jacob Beal, Traci Haddock-Angelli, Markus Gershater, Kim de Mora, Meagan Lizarazo, Jim Hollenhorst, Randy Rettberg, iGEM Interlab Study Contributors

Erratum issuedAbstract read
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed.

  1. Article
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  8. Review
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  10. Article
  11. Biological Materials: The Next Frontier for Cell-Free Synthetic Biology.Frontiers in bioengineering and biotechnology · 2020
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors.

Jacob BealRaytheon BBN Technologies, Cambridge, MA, United States of America.
Traci Haddock-AngelliiGEM Foundation, Cambridge, MA, United States of America.
Markus GershaterSynthace, London, United Kingdom.
Kim de MoraiGEM Foundation, Cambridge, MA, United States of America.
Meagan LizarazoiGEM Foundation, Cambridge, MA, United States of America.
Jim HollenhorstAgilent, Santa Clara, CA, United States of America.
Randy RettbergiGEM Foundation, Cambridge, MA, United States of America.
iGEM Interlab Study Contributors

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We present results of the first large-scale interlaboratory study carried out in synthetic biology, as part of the 2014 and 2015 International Genetically Engineered Machine (iGEM) competitions. Participants at 88 institutions around the world measured fluorescence from three engineered constitutive constructs in E. coli. Few participants were able to measure absolute fluorescence, so data was analyzed in terms of ratios. Precision was strongly related to fluorescent strength, ranging from 1.54-fold standard deviation for the ratio between strong promoters to 5.75-fold for the ratio between the strongest and weakest promoter, and while host strain did not affect expression ratios, choice of instrument did. This result shows that high quantitative precision and reproducibility of results is possible, while at the same time indicating areas needing improved laboratory practices.

Indexed as

Escherichia coliGreen Fluorescent ProteinsLaboratory Proficiency TestingPromoter Regions, GeneticProtein EngineeringReproducibility of ResultsTranscriptional ActivationTranscription, GeneticGreen Fluorescent Proteins

Identifiers

PMID26937966
PMCPMC4777433

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.